<!DOCTYPE html>
<html lang="zh">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body {
            background-color: #000;
        }

        .box {
            width: 400px;
            margin: 0 auto;
            position: relative;
        }

        .box>div {
            width: 200px;
            height: 200px;
            background-color: pink;
            border-radius: 0% 100% 0% 100%;
            transform-origin: 200px 200px;
            transform: rotate(45deg);
            opacity: .7;
            position: absolute;
            top: 300px;
            transition: transform 1s;
        }

        div:first-of-type{
            z-index: 2;
        }

        .box>div:first-of-type:hover+div {
            transform: rotate(15deg);
        }

        .box>div:first-of-type:hover+div+div {
            transform: rotate(75deg);
        }

        .box>div:first-of-type:hover+div+div+div {
            transform: rotate(-15deg);
        }
        .box>div:first-of-type:hover+div+div+div+div {
            transform: rotate(105deg);
        }
        .box>div:first-of-type:hover+div+div+div+div+div {
            transform: rotate(-45deg);
        }
        .box>div:first-of-type:hover+div+div+div+div+div+div {
            transform: rotate(135deg);
        }
    </style>
</head>

<body>
    <div class="box">
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
</body>

</html>